MICROPROCESSORS AND MICROCONTROLLERS - 2(MPMC) MAY 2011 [EXTC] ELECTRONICS AND TELECOMMUNICATION SEMESTER 6

MICROPROCESSORS AND MICROCONTROLLERS - 2(MPMC) MAY 2011 [EXTC] ELECTRONICS AND TELECOMMUNICATION SEMESTER 6

                                                                   (3 Hours)                         [Total Marks:-100]

Q.1 A. Design 8086 microprocessor based system with following specifications  [12 Marks]
           (i)  8086 microprocessor working at 8 MHz.
           (ii)  32 KB EPROM using 16 KB chips
           (iii) 32 KB SRAM using 16 KB chips
      b) Compare 80286 microprocessor and 80386 microprocessor on the basis of  [3 Marks]
           (i) Number of address lines
          (ii) Number of data lines
          (iii) Number of segment registers
      c) Write a program for PIC 18 to configure PORTA  for input, PORTB and PORTC for output.
           Read data from PORTA and transfer it to PORTB and PORTC. [5 Marks]

Q.2 a) Draw PSW of 8086 microprocessor and explain setting of different bits with
           example. [10 Marks]
       b) Discuss different data transfer modes of DMA controller 8257. [6 Marks]
       c) Write function of following 8086 microprocessor pins. [4 Marks]
            i) LOCK   ii) QS0   iii) QS1     
Q.3 a) Write addressing modes of following 8086 microprocessor instructions. [5 Marks]
            i) MOV CL, 25H    ii) MOV [SI],BX
          iii) ADD BX,DX       iv) SUB CL, [BX+SI]
          v) IN AL,80 H
       b) Explain data and program memory organization of PIC 18. [10 Marks]
       c) Discuss pipelining used in PIC 18. [5 Marks]

Q.4  a) Draw block diagram of a typical I/O port pin of PIC 18. Which are the different register
             involved in the operation of I/O ports of PIC 18 and write their operation. [10 Marks]
        b) Which are the different methods used for program loop. Explain each method in
             short. [10 Marks]

Q.5 a) Explain following instructions of PIC 18. [10 Marks]
            i) CLRF F,a      ii) BCF F,b,a
           ii) DAW            iii) CPFSEQ F,a
           v) BC n
      b) Explain maximum mode of 8086 microprocessor. [10 Marks]

Q.6 a) Draw timing diagram for write operation in minimum mode of 8086 and
           explain. [10 Marks]
      b) Explain different string primitives of 8086 microprocessor. [10 Marks]

Q.7 Write note on (Any Two): [20 Marks]
       i) Instruction formats of PIC 18
      ii) Interrupt structure of 8086 microprocessor
     iii) Assembler directives